Reversing-gearing.



- H. A. TUULE. REVERSING GEARING.

APPLICATION FILED FEB. 5,1912.

1,168,763, Patented Jan. 1s, 1916.

THE COLUMBIA PLANGGRAPU cul. WASHINGTON. D. c.

HENRY A. TUTTLE, OF TAUNTON, MASSACHUSETTS, ASSIGNOR T EVANS STAMPING @c f PLATING- COMPANY, OF TAUNTON, MASSACHUSETTS, A CRPORATION 0F MASSA-f CHUSETTS.

T0 all 107mm t may concern provernent in Reversing-Gearing, of which the following is a specification.

This invention relatesfto reversing gearing of the planetary type involving a driving-shaft with spur-gear secured thereto, a

,l driven-shaft with an internal gear secured thereto, pinions arranged between said spurgear and internal gear Which are bornefby a rotatable carrier, and a clutch and a brake for said pinion-carrier.

Heretofore, so far as I am aware, the

i'clutch has been arranged to connect the pinion-carrier With the driven-shaft, when it is designed to drive said driven-shaft by and in the saine direction as the drivingl, Y shaft, and when theparts are thus arranged "l and connected the Weight of the gearing is borne essentially by the driving-shaft. I

The present invention has for its object to construct and arrange the several elements of a reversing gearing in such inanner that the clutch connects the pinioncarrier with the driving-shaft iyhen it is desired to drive `the driven-shalt by and in the saine direction as the driving-shaft,

, and the Weight of the gearing is borne essentially by the driven-shaftl 7vihen using the` reversing-gearing in connection with' an engine arranged to drive a propeller, the engine-shaft becomes the, driving-shaft of the reversing-gearing and the propellershaft becomes the driven-shaft thereof.J and.

it is a decided advantage to remove the Weight of the gearingfrom the rear bearing of the engine.

By this invention the clutch-operating means will be mounted on the driving-shaft, instead of on the driven-shaft,-hence the hub of the internal gear may be I nade asy long as desired, and a very substantialgbearing provided for it which bearing is arranged close to the crown of thegear. n

Figure l is a longitudinal vertical section of a reversing gearing embodying this invention, the parts being in position to connect the, pinion-carrier with the drivingshaft, so that the driven-shaft will be rotated by and in the same direction as the driving-shaft. F ig. 2 is a similar sectional view of a portion of the reversing gearing,

Specification ci" Letters `Eateiit.

unire srarss ramena e. onirica;

navnnsin'e-enanine.

the parts being represented in full lines in position to permit the driving-shaft to rotate freely independent of the driven-shaft and in dotted lines in position to cause the driven-shaft to rotate in a direction opposite to the direction of rotation of the driving-shaft. Fig. 3 is a transverse vertical section taken on the dotted line 33, Fig. l.

a represents the driving-shaft, ordinarily called the engine-shaft, and a a spur-gear having at one sideof it an elongated yhub or sleeve 0:2, which embraces the shaft a. and is secured thereto by a suitable key a3, and having at the opposite side of it a short hub crt.

b, represent the pinions, several of Which are employed, which engage the spurgear, and said pinions are mounted to rotate freely on studs b, fixed to a pinion-carrier, which is here shown as a. cylindrical case f, having an end Wall b2 to Which the studs b are fixed, and having an end Wall f. The end Wall b2 is made of a substantial thickness and has its bearing on a bushing b3, arranged on the hub or sleeve a2 at one side of the spur-gear. of said spur-gear a plate c is located, which is mounted on the short hub a." and affords bearings for the ends of the studsb. The pinions o alsor engage an internal or crowngear CZ, having its hub d secured to the driven-shaft e, by a suitable key (Z2. The internal or crown-gear is arranged Within andfits loosely the cylindrical body of thepinion-carrier or case and the end wall 7 of said carrier extends over thecrovvn of.

said gear.r The driven-shaft is designed to be held against endWise movementin a direction toward the left, Fig. l, or in other Words the end-thrust in such direction isv opposed, and, as here shovvn, the hub d of theinternal gear which is arranged on said shaft extends through a bearing arranged iii the frame f3 and is additionally secured to said shaft by pins and at the outside of said frame f3 said hub has arranged on it a Washer f4 engaging the frame, a ball-ring f5, the balls borne by it engaging the Washer,

a sliding-collar f6 also engaging said balls, and an adjustable collar f7 engaging said sliding collar, the latter engaging a screwthreaded end-portion of the hub. The end Wall f of the pinion-carrier or case which extends over the crown of said internal- Patented Jan. i8, 1916.

Application filed February 5, 1912. Serial No. 675,441.

gear occupies a position between said crown and the bearing-frame f3, and Vis held against endwise movement by `a washer f1", interposed between said end wall and the frame, yet in lieu thereof other means may be employed for holding the internal gear and pinion-carrier Jfrom endwise movement and also for adjusting their relative position.

The pinion-carrier has a clutch to connect it with the driving-shaft when it is desired to rotate the driven-shaft by and in the same direction as thedriving-shaft, and, as my present invention is not limited to the employment of any particular form of clutch, the clutch shown in Letters Patent .ti-901,664, granted to me October 20, 1908, is here shown. Thisr clutch is constructed as follows hlo represents a clutch-plate slidably arranged on the sleeve a2, but connected therewith so as to be rotated by it, and said clutch-plate is arranged immediately in front of the end wall b2 of the pinion-car-` rier, soas to be movable into and out of engagement with said end wall. g represents another clutch-plate, which overlies the clutch-plate h1", and is slidably connected wth'the pinion-carrier by pins g2 fiXedto and k'projecting from said pinion-carrier. 71, represents a collar which is secured to, but adjustably arranged on the sleeve a?, and whichsis adaptedto'be engaged by and to serve asian abutment forv the toes i, of levers z", pivoted at 2, .to ears on the clutch-plate g, `said levers extending in the general direction of the shaft cz, and their outer ends engaging a cone j, mounted loosely on. said sleeve a2, and `adapted to be moved along thereon by an actuating-lever 7c, pivotally connected at its lower end to an arman. Assaid actuatingelever 7c is moved on' its pivot the cone will be slid along on the shaft, and the pivoted levers thereby moved on their pivots to cause the clutch-plates to engage or disengage the pinion-carrier according to the direction said actuating-lever 7c is moved.

When moved into the position kshown in Eig. l, theclutch engages the pinion-carrier and connects -said pinion-carrier with the driving-shaft through the sleeve a?, and as a result 'the driven-shaft is rotated by and in the same' direction as the driving-shaft. When said actuating-lever is moved into the iull line position shown in Fig. 2, the clutch is disengaged and the driving-shaft is free to rotate independently of the driven-shaft; The pinion-carrier isvalso supplied with a brake which is, adapted to engageit, and hold it at rest when the clutch is disengaged, thereby to cause the driving-shaft to drive the driven shaft in a reverse direction. As my present invention does not involve any particular construction of brake, the brake of my aforesaid patent is here shown. It comprises essentially two semicircular members o, o, shaped to embrace the cylindrical body oii' the pinion-carrier, and having ears o', 0, at their lower ends which extend over the opposite sides of the arm m, v,and areisecured thereto by a bolt, and havingears at their upper ends adapted to be engaged by a Cain-lever n, by which the semicircular members are moved toward each other to engage the cylindrical body of the pinion-carrier, and said arm n is connected by a linka2 with the actuating-lever 7c, so as to be moved by said actuating-lever. When. the actuating-lever is moved into the dotted line position, Figl, andthe arm a isflikewise moved into its dotted line position, the brake will an' internal gear surrounding the drivingshaft-and engaging said pinions and having an elongated hub secured to the drivenshaft, a bearing frame through which said hub is extended, a carrier for the pinions, al clutch to connect the pinion-carrier with the sleeve on the driving-shaft, actuating-means for the clutch arranged on the sleeve bear-y ing the spur-gear, and a brake arranged .fon arrestingV the pinion-carrier, substantiallyy as HENRY A.. TTTLE.

Witnesses H. B. Davis,l B. J. Noms.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner df Patents.

Washington, D. C." 

